Key operated switch for automobile alarm or the like

Details Key operated switch for automobile alarm or the like Key operated switch for automobile alarm or the like

1977-06-20

1978-05-16

Marcus, Stephen

Electricity: circuit makers and breakers

High-potential type

Rotating and pivoted

200 15, 200155R, 200262, 200275, H01H 2706

Patent

active

040900460

ABSTRACT:
An electric key-operated switch adapted to be mounted on the exterior of a vehicle or structure to arm or disarm an alarm system. A key is to be rotated in a cylinder between two positions, each of which controls a separate circuit that is normally open when the contact rotor carried by the cylinder is not engaged with contacts connected to the respective circuit. The invention provides more positive electrical engagement and a novel structure for economically adjusting the limits of positions of the contact rotor so that the key may readily be inserted and removed.

REFERENCES:
patent: 648951 (1900-05-01), Hanson
patent: 931911 (1909-08-01), York
patent: 1709008 (1929-04-01), Ennis et al.
patent: 2778891 (1957-01-01), Jacobi

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